is Portland cement a mineral?​

Answers

Answer 1

Answer:

no

Explanation:

Answer 2

Answer. no

Answer. no

explanation


Related Questions

i need help please asap

Answers

Answer:

B is the answer correct me

it’s B. the DNA is found in the cytoplasm whereas eukaryotic DNA is packed into the nucleus of the cell

Can blood cells replicate themselves?

Answers

Answer:

Blood cells cannot replicate themselves.

Explanation:

They do not replicate like other bodily cells because they cannot independently process and create proteins. Blood cells are instead formed in the bone marrow of bones. Depending on whether it is RBC or WBC, there are different types of bone marrow for producing that type of blood cell.

Students were involved in an experiment to investigate whether playing music while they
took a test affected their scores.
control
independent variable
dependent varibale
test scores students = playing music during a test

Answers

Answer:What  excalty the question?

Explanation:

Which of the following describes a method of energy conservation?
O A. Driving a car with low fuel efficiency less often than before
O B. Switching to an appliance that has lower energy efficiency
O C. Driving a car with high fuel efficiency more often than before
XOD. Removing the insulation from a home before using the heater in winter

Answers

A) drive a car less (any car) and you are conserving energy

What can cause genetic variation in a population?

Answers

Answer: by mutations when there is random fertilization and mating and when homogenous genes get together (especially if it is recessive) then a mutation can occur

Explanation:

here is 1/2 the chance from one parent and 1/2 the chance from the second parent, the chance of getting (A) and (A) is

Answers

Answer:

1

Explanation:

like. like. Zhhhhxxjj

What is the genotype and phenotype for A male hemophiliac with a woman pure for normal clotting.

Answers

Answer:

Male=XhY and woman=XHXH

What is the probability of flipping a coin twice and getting two heads?

a) 1
b) 1/2
c) 1/4
d) 3/4

Answers

Answer:

3 , I'm a Harvard graduate

How much of the parent DNA molecule makes up one daughter DNA molecule ?

Answers

Answer:

Watson and Crick discovered that DNA has a double helix shape, consisting of two polynucleotide chains held together by bonds between complementary bases. DNA replication is semi-conservative: half of the parent DNA molecule is conserved in each of the two daughter DNA molecules.

Explanation:

I looked it up lol

How is salinity affected?
(a) evaporation increases
(b) freezing increases
(c) melting increases
(d) precipitation increases

Answers

Answer:

Salinity of seawater is affected by evaporation, precipitation, ice formation, and ice melting. Evaporation increases the salinity of seawater because when seawater evaporates, the salts are left behind, thus increasing their concentration. ... Ice formation and melting behaves in a similar way.

Answer: evaporation increases

Explanation:

the first person meant evaporation increases

How do cells obtain energy?

Answers

Answer:

Beginning with energy sources obtained from their environment in the form of sunlight and organic food molecules, eukaryotic cells make energy-rich molecules like ATP and NADH via energy pathways including photosynthesis, glycolysis, the citric acid cycle, and oxidative phosphorylation.

Cells have an organelle known as 'mitochondria' which has ATP molecules in it. These ATP molecules generates energy for the cell to function properly.

Cells need a source of energy, they get this energy by breaking down food molecules to release, the stored chemical energy.

This process is called 'cellular respiration'.

The process is happens in all the cells in our body.

Oxygen is used to oxidize food, main oxidized food is sugar(glucose).

3. Animals can develop illnesses from bacterial infections. Antibiotic medications are sometimes prescribed to treat these infections. What do you think might happen to a population of bacteria that is exposed frequently to such antibiotics? ​

Answers

Answer:

it could mutate to where the antibiotic no longer works

Explanation:

its fairly simple if a medicine, antibiotic in this case  is not changed over time then the thing it is fighting will learn how to ignore it to where it no longer works as the species adapt and change the antibiotics must to otherwise there will be no effect.

What does Sexual reproduction involves ?

Answers

Answer:

it involves a sperm (male) entering an egg (female)

Explanation:

Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (such as a sperm or egg cell) with a single set of chromosomes (haploid) combines with another to produce an organism composed of cells with two sets of chromosomes (diploid).

Which molecule found in the cell membrane is used to transport glucose into the cell

Answers

Answer:

Active transport proteins use adenosine triphosphate (ATP), the cell's energy storage molecule, to pump glucose into the cell, either with or against the concentration gradient.

Explanation:

Hope this helps

Baldness is inherited by a recessive allele on the X chromosome Hermione Lodge is a Carrier for the trait for baldness. Her husband, Hiram Lodge is not bald What is the probability that their child is a bald male?​

Answers

Answer:

the probability is 50%

People are encouraged to exercise after recovering from a heart attack.
Suggest one reason why.​

Answers

Ans

It will speed up your ability to return to normal activities

Explanation:

Active
Create a dichotomous key.
Magnifying Glass
Drag your question here.
Legs
Wings
Antennae
Stinger
Claws
Brown

Answers

Answer:

here hope this helps sorry its late but better late then never right anyways here have a good day if you have questions please let me know.

Explanation:

A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.

What is Dichotomous key?

More details regarding the unique characteristics of a given organism are disclosed with each successive division. Once the organism no longer exhibits all of the chosen traits in concert with any other organism, it has been recognized.

In order to identify specimens with a dichotomous key, it is recommended to employ immutable traits (i.e. features that do not change). Size, coloration, and behavioral habits can all change across people and over the course of a lifetime.

Better traits are produced by physical features (like the number of limbs) and biological processes (like the mode of reproduction). Typically, dichotomous keys are displayed in one of two ways.

Therefore, A dichotomous key is an identification technique that repeatedly divides groups of organisms into two categories.

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Analyze the cell shown below. Which of the following accurately describes an
essential cell function being provided by the process shown?
A. Modification of protein
B.secretion of regulatory molecules
C.Synthesis of proteins
D.Digestion of food particles
A. Modification of proteins

Answers

Si tests of proteins I think so

Which three organs are part of the digestive tract?

A) salivary glands, gall bladder, appendix

B)teeth, tongue, mouth

C)esophagus, stomach, small intestine

D)esophagus, liver, pancreas

Answers

Answer:

C

Explanation:

Due to the stomach and small intestine being part of the digestive tract and the esophagus allowing food, liquids and air to enter the torso

Esophagus, stomach, small intestine are part of the digestive tract. Therefore option C is correct.

The digestive tract, also known as the gastrointestinal tract, is responsible for the process of digestion in the human body. It consists of a series of organs that work together to break down food and absorb nutrients.

The three organs that are part of the digestive tract are the esophagus, stomach, and small intestine.

The esophagus is a muscular tube that connects the mouth to the stomach and helps in the transportation of food. The stomach is a sac-like organ that mixes and churns food with digestive enzymes and acids.

The small intestine is a long tube where the majority of digestion and absorption of nutrients occurs.

Therefore option C esophagus, stomach, small intestine is correct.

Know more about the digestive tract:

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WRITE TRUE IF CORRECT AND WRITE FALSE IF IS INCORRECT
1. Planting trees protects the soil from erosion and floods.
free 2. Sunlight refers to the degree of coldness and hotness of the atmosphere at a certain period of
3. Trees are very dependent on waters and serve as a solvent for the nutrients from the soil.
4. Soil contains mineral elements necessary for normal plants growth and development.
5. Trees easily die when they have grown to maturity because of extreme temperature changes.
6. There is more demand in buying bottled or canned fruits because such are more nutritious
than fresh fruits.
7. Planting trees reducestruction to homes and crops by serving as wind breakers during
typhoons and storms.
8. Inorganic fertilizers came from decayed fruits and vegetables peelings and manures.
9. In fruits tree productions select a variety of tree that is not found in your locality.
10. Sunlight is the main energy provider and influences the growth of trees through
cynthesis.​

Answers

Answer: is it the same for all the questions?

Explanation:

What is the difference between small, controlled lab experiments versus an ecosystem-scale experiment?​

Answers

Answer: the number of variables

Explanation:

The difference between small, controlled lab experiments versus an ecosystem-scale experiment is the number of variables.

What is an experiment?

A technique used in science to create a discovery, test a hypothesis or prove a known fact.

Lab experiments are done in the lab with a limited amount of variables as there is limited space available.

The ecosystem-scale experiment is performed on large scale and with many variables.

Thus, the difference is the number of variables.

Learn more about experiments, here:

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What is the circulatory system?

Answers

Answer:

The heart and blood vessels

Explanation:

Answer:

the system that circulates blood and lymph through the body

Explanation:

FYI I searched it up.

Sometimes errors called mutations occur during DNA replication. What are some of the possible consequences of mutations?

Answers

Answer:

HAVING U AS A CHI,LD

HAHAHAHA

Explanation:

mutations can decrease the lifetime of a organism, it can also make it allergic or weak to some things

2. Complete the table describing the types of organisms.
TYPES OF ORGANISMS
Type
Description
Examples
Organisms that make their own food
Organisms that obtain energy
from the food they eat

Answers

The food they eat makes their own food and

What is an example of a codominate
phenotype?

Answers

Answer:

With a codominant trait, phenotypes like fur color are combined. For example, if a black-feathered chicken breeds with a white-feathered chicken, their offspring will be both black and white. They will not be gray; rather, there will be spots of both colors. Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.

I hope this helps some~ <3

-Dream

Why do offsprings look different from there parents?

Answers

Living things produce offspring of the same species, but in many cases offspring are not identical with each other or with their parents. Plants and animals, including humans, resemble their parents in many features because information is passed from one generation to the next.

Offspring differ somewhat from their parents and from one another. Instructions for development are passed from parents to offspring in thousands of discrete genes, each of which is now known to be a segment of a molecule of DNA. This essay will explore some of the reasons behind how and why these differences in appearance arise, from the base sequence of DNA through to the observed phenotype.
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene.

I WILL GIVE BRAINLIEST!!!
Sickle-cell anemia is a recessive trait in humans. In order to express the disease, an affected individual must inherit two recessive alleles (ss).

What is the probability that the offspring of two heterozygous parents will also be heterozygous?

Choose 1 answer:

(choice A)
A


(choice B)
B
[tex]\frac{1}{4}[/tex]

(choice C)
C
[tex]\frac{1}{2}[/tex]

(choice D)
D
[tex]\frac{3}{4}[/tex]

(choice E)
E
[tex]\frac{4}{4}[/tex]

Answers

Answer:

1/4 will have ss trait

Explanation:

other 2/4 will be carrier(Ss) and other 1/4 will have both dominant trait (SS)

Answer:

B. 1/2

Explanation:

The genotypes of the parents are Ss and Ss. We know this because Heterozygous basically means different alleles. The punnet square of this problem will show that the possible genes given to the offspring are SS (capital letters mean dominant. keep in mind that sickle-cell anemia is a recessive trait, meaning it is written in lowercase), Ss, Ss, or ss. So this means the offspring will have a 1/2 chance of becoming heterozygous (Ss).

Blank muscles allow you to move parts of your body in different ways when
you want to

Answers

Answer:

Skeletal muscles I think

Explanation:

because i think so

What is the probability of flipping a coin twice and getting two heads?

a) 1
b) 1/2
c) 1/4
d) 3/4

Help

Answers

The probability of getting two heads on two coin tosses is 0.5 x 0.5 or 0.25. A visual representation of the toss of two coins.

Answer:

c) 1/4

Explanation:

0.5 x 0.5

The probability of getting two heads on two coin tosses is 0.5 x 0.5 or 0.25. A visual representation of the toss of two coins. The Product Rule is evident from the visual representation of all possible outcomes of tossing two coins shown above

a sailboat moves faster as the wind blows on its sail. this is an example of acceleration, force, speed, velocity

Answers

Answer:

force

Explanation:

Gravity and buoyancy are the two key forces that operate on a stationary sailboat. The power of the wind pulls on the sail in order for the boat to move which allows the boat to move. The powers are now unbalanced, which is apparent from the acceleration of the ships.

The boat accelerates until the forward portion of the force from the sails is matched by the drag from the water.

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